careaga t saenz



(No Model.) 7

L. G. OAREAGA Y SAENZ.

PUMP. V N0. 305,997. Patented Sept. 30, 1884. E ['5 F2 I IE/ 7 E Y/ g 6 g e 3 WIIIIIIHH H i WITNESSES:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

LUIS G. GAREAGA Y SAENZ, OF PUEBLA, MEXICO.

PUMP.

SPECIFICATION forming part of Letters Patent No. 305,997, dated September 30, 1884.

Application filed May 5, 1883. (No model.) Patented in Mexico November 28, 1882.

To all whom it may concern Be it known that I, LUIs G. CAREAGA Y SAENZ, of Puebla, Mexico, have invented a new and Improved Pump, of which the following is a full, clear, and exact description.

My invention is an improvementin doublepiston pumps; and it consists in the construction and combination of parts, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal sectional elevation of myimproved pump on theline 00 00, Fig. 3. Fig. 2 is a cross-sectional elevation of the same on the line y y, Fig. 3. Fig. 3 is a plan view of the same. Fig. 4 is a sectional plan view of the barrel on the line as m, Fig. 2, parts being broken out. Fig. 5 is a sectional plan view of the barrel on the line 7 y, parts being broken out. l

A barrel, A, is provided at its upper end with an overjutting reservoir orbasin, B, having a spout, O, to the sides of which reservoir two standards, D D, are attached, in the upper ends of which a horizontal shaft, E, is journaled, which is provided at one end with a Ily-wheel, E, and at the other end with a crank-handle, E. On the shaft E two cireumferentially-grooved disks, F F,are1nounted eccentrically and diametrically oppositethat is to say, one projects upward and the other downward from the shaft. Rings G G surround the grooved peripheries of the disks F F, and are secured to rods H II, the lower ends of which are held in the upper ends of sleeves J J attached to the upper ends of the pump-rods K K. To the lower end of the pump-rod K an apcrtured disk, L, fitting closely in the barrel, is held, and on the said disk L a rubber or leather circular valveplate, M, is held, which valve-plate is provided with an upwardly-projecting annular in the barrel, on which apertured disk L acir- 'cular flange-plate, M, of rubber or leather, is held, which circular valve-plate is provided with an upwardly-projecting annular flange. The plate a is held on the valve-plate M and the disk L by means of bolts d,passingthrough the plate a, the valve-plate M, and the disk L. The pump-rod K must necessarily be held eccentrically on the disk L, as the pump-rod K passes through the middle of the disk L.

The operation is as follows: If the shaft E is rotated by means of the crank E the apertured disks L and L will be reciprocated vertically within the pump-barrel, and will be alternately moved toward and from each other. If they are moved toward each other, the water above the valve-plate M will be forced through the aperture in the disk L, and will raise the valve plate M and rise above the same, the water being prevented from passing back through the apertures in the disk L by the valve M, the flanges of which will be pressed closely against the sides of the barrel by the water. lVhen the circular disks L L are moved from each other, a vacuum will be produced between them, which is filled by the water which passes in through the lower disk, L, and raises the valve-plate M, the water being prevented from falling back by the valve M, which acts as a check-valve. At the same timethe water above the valve M is raised to the top of the barrel and to the reservoir 13, from which it flows through the spout 0.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- The combination, with the rigid piston-disk L and its rod K, which is arranged eccentrically, of the segmental metal plate a, attached to said disk and rod, and the flanged imper- 

